diff options
Diffstat (limited to 'board/atmel/sama5d2_icp')
| -rw-r--r-- | board/atmel/sama5d2_icp/sama5d2_icp.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/board/atmel/sama5d2_icp/sama5d2_icp.c b/board/atmel/sama5d2_icp/sama5d2_icp.c index 807cfcdb19..1593e2bd4e 100644 --- a/board/atmel/sama5d2_icp/sama5d2_icp.c +++ b/board/atmel/sama5d2_icp/sama5d2_icp.c @@ -73,6 +73,36 @@ int misc_init_r(void) /* SPL */ #ifdef CONFIG_SPL_BUILD +/* must set PB25 low to enable the CAN transceivers */ +static void board_can_stdby_dis(void) +{ + atmel_pio4_set_pio_output(AT91_PIO_PORTB, 25, 0); +} + +static void board_leds_init(void) +{ + atmel_pio4_set_pio_output(AT91_PIO_PORTB, 0, 0); /* RED */ + atmel_pio4_set_pio_output(AT91_PIO_PORTB, 1, 1); /* GREEN */ + atmel_pio4_set_pio_output(AT91_PIO_PORTA, 31, 0); /* BLUE */ +} + +/* deassert reset lines for external periph in case of warm reboot */ +static void board_reset_additional_periph(void) +{ + atmel_pio4_set_pio_output(AT91_PIO_PORTB, 16, 0); /* LAN9252_RST */ + atmel_pio4_set_pio_output(AT91_PIO_PORTC, 2, 0); /* HSIC_RST */ + atmel_pio4_set_pio_output(AT91_PIO_PORTC, 17, 0); /* USB2534_RST */ + atmel_pio4_set_pio_output(AT91_PIO_PORTD, 4, 0); /* KSZ8563_RST */ +} + +static void board_start_additional_periph(void) +{ + atmel_pio4_set_pio_output(AT91_PIO_PORTB, 16, 1); /* LAN9252_RST */ + atmel_pio4_set_pio_output(AT91_PIO_PORTC, 2, 1); /* HSIC_RST */ + atmel_pio4_set_pio_output(AT91_PIO_PORTC, 17, 1); /* USB2534_RST */ + atmel_pio4_set_pio_output(AT91_PIO_PORTD, 4, 1); /* KSZ8563_RST */ +} + #ifdef CONFIG_SD_BOOT void spl_mmc_init(void) { @@ -93,12 +123,20 @@ void spl_board_init(void) #ifdef CONFIG_SD_BOOT spl_mmc_init(); #endif + board_reset_additional_periph(); + board_can_stdby_dis(); + board_leds_init(); } void spl_display_print(void) { } +void spl_board_prepare_for_boot(void) +{ + board_start_additional_periph(); +} + static void ddrc_conf(struct atmel_mpddrc_config *ddrc) { ddrc->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR3_SDRAM); |